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<div class="title">nrf51/Board/nrf6310/uart_example/main.c</div>  </div>
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<a href="nrf6310_2uart__example_2main_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* Copyright (c) 2009 Nordic Semiconductor. All Rights Reserved.</span>
<a name="l00002"></a>00002 <span class="comment"> *</span>
<a name="l00003"></a>00003 <span class="comment"> * The information contained herein is confidential property of Nordic</span>
<a name="l00004"></a>00004 <span class="comment"> * Semiconductor ASA.Terms and conditions of usage are described in detail</span>
<a name="l00005"></a>00005 <span class="comment"> * in NORDIC SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.</span>
<a name="l00006"></a>00006 <span class="comment"> *</span>
<a name="l00007"></a>00007 <span class="comment"> * Licensees are granted free, non-transferable use of the information. NO</span>
<a name="l00008"></a>00008 <span class="comment"> * WARRANTY of ANY KIND is provided. This heading must NOT be removed from</span>
<a name="l00009"></a>00009 <span class="comment"> * the file.</span>
<a name="l00010"></a>00010 <span class="comment"> *</span>
<a name="l00011"></a>00011 <span class="comment"> */</span>
<a name="l00012"></a>00012 
<a name="l00039"></a>00039 <span class="preprocessor">#include &lt;stdbool.h&gt;</span>
<a name="l00040"></a>00040 <span class="preprocessor">#include &lt;stdint.h&gt;</span>
<a name="l00041"></a>00041 <span class="preprocessor">#include &quot;nrf.h&quot;</span>
<a name="l00042"></a>00042 <span class="preprocessor">#include &quot;<a class="code" href="simple__uart_8h.html" title="Simple UART driver.">simple_uart.h</a>&quot;</span>
<a name="l00043"></a>00043 <span class="preprocessor">#include &quot;nrf_gpio.h&quot;</span>
<a name="l00044"></a>00044 <span class="preprocessor">#include &quot;boards.h&quot;</span>
<a name="l00045"></a>00045 
<a name="l00046"></a>00046 <span class="comment">//#define ENABLE_LOOPBACK_TEST           /*!&lt; if defined, then this example will be a loopback test, which means that TX should be connected to RX to get data loopback */</span>
<a name="l00047"></a>00047 
<a name="l00048"></a><a class="code" href="group__uart__example.html#ga060b639e5bd6bc4aa7096412765f1756">00048</a> <span class="preprocessor">#define ERROR_PIN                (8)   </span>
<a name="l00049"></a><a class="code" href="group__uart__example.html#gac5774d550c2aa890fa1ad9b44cb401b9">00049</a> <span class="preprocessor">#define MAX_TEST_DATA_BYTES      (15U) </span>
<a name="l00051"></a>00051 <span class="preprocessor">#ifndef ENABLE_LOOPBACK_TEST</span>
<a name="l00052"></a>00052 <span class="preprocessor"></span>
<a name="l00056"></a><a class="code" href="group__uart__example.html#ga3b82dd7f24db0e0872c0c735b1a274a2">00056</a> <span class="keyword">static</span> __INLINE <span class="keywordtype">void</span> <a class="code" href="group__uart__example.html#ga3b82dd7f24db0e0872c0c735b1a274a2">uart_quit</a>()
<a name="l00057"></a>00057 {
<a name="l00058"></a>00058   <a class="code" href="group__nrf__drivers__simple__uart.html#ga76e6bde269950e02affbff121c79d408">simple_uart_putstring</a>((<span class="keyword">const</span> uint8_t *)<span class="stringliteral">&quot; \n\rExit!\n\r&quot;</span>);
<a name="l00059"></a>00059 }
<a name="l00060"></a>00060 
<a name="l00064"></a><a class="code" href="group__uart__example.html#ga33ac90f59ee825fec959d63ce86d9176">00064</a> <span class="keyword">static</span> __INLINE <span class="keywordtype">void</span> <a class="code" href="group__uart__example.html#ga33ac90f59ee825fec959d63ce86d9176">uart_start</a>()
<a name="l00065"></a>00065 {
<a name="l00066"></a>00066   <a class="code" href="group__nrf__drivers__simple__uart.html#ga76e6bde269950e02affbff121c79d408">simple_uart_putstring</a>((<span class="keyword">const</span> uint8_t *)<span class="stringliteral">&quot; \n\rStart: &quot;</span>);
<a name="l00067"></a>00067 }
<a name="l00068"></a>00068 
<a name="l00069"></a>00069 <span class="preprocessor">#else</span>
<a name="l00070"></a>00070 <span class="preprocessor"></span>
<a name="l00074"></a>00074 <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="group__n_r_f6350__radio__configuration__example.html#ga49d49ccf1ca89138451d4213b06e013e">show_error</a>(<span class="keywordtype">void</span>)
<a name="l00075"></a>00075 {
<a name="l00076"></a>00076   <a class="code" href="group__nrf__gpio.html#ga7fefa8a71e25eeb57b5b4230b0dd0484" title="Write value to GPIO pin.">nrf_gpio_pin_write</a>(<a class="code" href="group__uart__example.html#ga060b639e5bd6bc4aa7096412765f1756">ERROR_PIN</a>, 1);
<a name="l00077"></a>00077   <span class="keywordflow">while</span>(<span class="keyword">true</span>)
<a name="l00078"></a>00078   {
<a name="l00079"></a>00079   }
<a name="l00080"></a>00080 }
<a name="l00081"></a>00081 
<a name="l00082"></a>00082 
<a name="l00087"></a>00087 <span class="keyword">static</span> <span class="keywordtype">void</span> uart_loopback_test()
<a name="l00088"></a>00088 {
<a name="l00089"></a>00089   uint8_t *<a class="code" href="group__spi__master__example.html#gab36e6efd0ec4bf8a1f51555850828b5a">tx_data</a> = (uint8_t *)(<span class="stringliteral">&quot;\n\rLOOPBACK_TEST&quot;</span>);
<a name="l00090"></a>00090   uint8_t <a class="code" href="group__spi__master__example.html#gae4cee0b144cc6cb01fc4c7b36e37a874">rx_data</a>;
<a name="l00091"></a>00091 
<a name="l00092"></a>00092   <span class="comment">// Start sending one byte and see if you get the same</span>
<a name="l00093"></a>00093   <span class="keywordflow">for</span>(uint8_t i = 0; i &lt; <a class="code" href="group__uart__example.html#gac5774d550c2aa890fa1ad9b44cb401b9">MAX_TEST_DATA_BYTES</a>; i++)
<a name="l00094"></a>00094   {
<a name="l00095"></a>00095     <span class="keywordtype">bool</span> status;
<a name="l00096"></a>00096     <a class="code" href="group__nrf__drivers__simple__uart.html#ga6346f3ba3f0f1eaaa123064daa3df405">simple_uart_put</a>(tx_data[i]);
<a name="l00097"></a>00097     status = <a class="code" href="group__nrf__drivers__simple__uart.html#gad4e7d17833960c77c90db7a5cb309a68">simple_uart_get_with_timeout</a>(2, &amp;rx_data);
<a name="l00098"></a>00098 
<a name="l00099"></a>00099     <span class="keywordflow">if</span> ((rx_data != tx_data[i]) || (!status))
<a name="l00100"></a>00100     {
<a name="l00101"></a>00101       <a class="code" href="group__n_r_f6350__radio__configuration__example.html#ga49d49ccf1ca89138451d4213b06e013e">show_error</a>();
<a name="l00102"></a>00102     }
<a name="l00103"></a>00103   }
<a name="l00104"></a>00104   <span class="keywordflow">return</span>; <span class="comment">// Test passed</span>
<a name="l00105"></a>00105 }
<a name="l00106"></a>00106 
<a name="l00107"></a>00107 <span class="preprocessor">#endif</span>
<a name="l00108"></a>00108 <span class="preprocessor"></span>
<a name="l00113"></a><a class="code" href="group__uart__example.html#ga840291bc02cba5474a4cb46a9b9566fe">00113</a> <span class="keywordtype">int</span> <a class="code" href="group__gpio__example.html#ga840291bc02cba5474a4cb46a9b9566fe">main</a>(<span class="keywordtype">void</span>)
<a name="l00114"></a>00114 {
<a name="l00115"></a>00115   <a class="code" href="group__nrf__drivers__simple__uart.html#ga15ab88a2172a5ea02ff41ae9711bc0af">simple_uart_config</a>(RTS_PIN_NUMBER, TX_PIN_NUMBER, CTS_PIN_NUMBER, RX_PIN_NUMBER, HWFC);
<a name="l00116"></a>00116 
<a name="l00117"></a>00117 <span class="preprocessor">#ifndef ENABLE_LOOPBACK_TEST</span>
<a name="l00118"></a>00118 <span class="preprocessor"></span>
<a name="l00119"></a>00119   <a class="code" href="group__uart__example.html#ga33ac90f59ee825fec959d63ce86d9176">uart_start</a>();
<a name="l00120"></a>00120   <span class="keywordflow">while</span>(<span class="keyword">true</span>)
<a name="l00121"></a>00121   {
<a name="l00122"></a>00122     uint8_t cr = <a class="code" href="group__nrf__drivers__simple__uart.html#gabae30008064ce450ab819949a692c511">simple_uart_get</a>();
<a name="l00123"></a>00123     <a class="code" href="group__nrf__drivers__simple__uart.html#ga6346f3ba3f0f1eaaa123064daa3df405">simple_uart_put</a>(cr);
<a name="l00124"></a>00124 
<a name="l00125"></a>00125     <span class="keywordflow">if</span>(cr == <span class="charliteral">&#39;q&#39;</span> || cr == <span class="charliteral">&#39;Q&#39;</span>)
<a name="l00126"></a>00126     {
<a name="l00127"></a>00127       <a class="code" href="group__uart__example.html#ga3b82dd7f24db0e0872c0c735b1a274a2">uart_quit</a>();
<a name="l00128"></a>00128       <span class="keywordflow">while</span>(1){}
<a name="l00129"></a>00129     }
<a name="l00130"></a>00130   }
<a name="l00131"></a>00131 
<a name="l00132"></a>00132 <span class="preprocessor">#else</span>
<a name="l00133"></a>00133 <span class="preprocessor"></span>  <span class="comment">/* This part of the example is just for testing, can be removed if you do not have a loopback setup */</span>
<a name="l00134"></a>00134 
<a name="l00135"></a>00135   <span class="comment">// ERROR_PIN configure as output</span>
<a name="l00136"></a>00136   <a class="code" href="group__nrf__gpio.html#ga0271806dc37bffea02d199474d526a35" title="Configure given GPIO pin number as output with given initial value set, hiding inner details...">nrf_gpio_cfg_output</a>(<a class="code" href="group__uart__example.html#ga060b639e5bd6bc4aa7096412765f1756">ERROR_PIN</a>);
<a name="l00137"></a>00137   <span class="keywordflow">while</span>(<span class="keyword">true</span>)
<a name="l00138"></a>00138   {
<a name="l00139"></a>00139     uart_loopback_test();
<a name="l00140"></a>00140   }
<a name="l00141"></a>00141 <span class="preprocessor">#endif</span>
<a name="l00142"></a>00142 <span class="preprocessor"></span>}
<a name="l00143"></a>00143 
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